You may get a couple different answers but IMO 3/4 black poly should be good enough for pushing air 400ft. I'm not familiar with the Vevor kit. A link to it would help more with answers. There are some very informed number crunchers here that hopefully can add some good information to this thread topic. There are chart/tables to find the resistance to air moving through tubing. One such chart was referenced this past week. IMO the most important factor is how much psi does the compressor create. The lower the compressors psi the more important airline diameter becomes for pushing air over 300-400ft.

Last edited by Bill Cody; 04/29/22 07:14 PM.

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